该算法能够减少爬山步数，可提高自动聚焦速度。
The algorithm reduces mountain climbing steps, and enhances auto-focus speed.
仿真实验表明，这种粗精相结合的检调焦方法既能保证聚焦精度，又能提高聚焦速度。
The simulation results have shown that this method which combines rough and fine focus adjustment can ensure the focusing accuracy while improving the focusing speed.
对于飞行速度每小时数千英里的目标进行激光束瞄准和聚焦并不容易，但机载激光器是唯一能够完成这项工作。
Pointing and focusing a laser beam on a target that is rocketing skyward at thousands of miles per hour is no easy task, but the Airborne laser is uniquely able to do the job.
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